Home / 31,217.88-43,080.26-17,789.92

Finding the Fourth Proportional to 31,217.88, 43,080.26 and 17,789.92

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Solution

The fourth proportional to 31,217.88, 43,080.26 and 17,789.92 is: 24,549.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,217.88 : 43,080.26 = 17,789.92 : x
  2. Step 2: Convert to fraction form
    31,217.88/43,080.26 = 17,789.92/x
  3. Step 3: Cross multiply
    31,217.88x = 43,080.26 × 17,789.92
  4. Step 4: Simplify right side
    31,217.88x = 766,394,378.98
  5. Step 5: Solve for x
    x = 766,394,378.98/31,217.88
  6. Step 6: Final answer
    x = 24,549.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.